Which is best? two websites or dual content on one website?

[Gemini23]

I have a website for Widgets that are largely for the UK and Europe market. I also have another website (that hasn't had as much work done on it - very few incoming links - relatively light content - therefore very light traffic) that provides Widgets for the US market. Both are hosted by the same US company. Both sites are 3+ years old. Should I a) work on promoting the US Widget website with more content and seo as a stand alone website or B) bring the US Widget into my main UK website and add the US market as a directory. The Widgets are essentially the same type of product/service - just in different places.

[tedster]

Have you read the -- GEO-TARGETED SEARCH -- threads in the Hot Topics area [webmasterworld.com], which is always pinned to the top of this forum's index page? There's a lot of relevant discussion in that area which is important for what, in the final say, is a business decision for you.

[Gemini23]

Thanks Tedster for pointing me in the right direction. I just want to make sure that by adding content from one source it will not adversely affect rankings for another. I will head off to Hot Topics Area for some reading up on the matter.